【摘要】 建立了内燃机燃烧室内空气运动的数学模型，改进了任意拉格朗日－欧拉算法，应用该改进的算法对内燃机燃烧室内的空气运动进行了三维数值计算，计算结果与激光多普勒测量结果取得了良好的一致获得了燃烧室中纵截面、横截面和侧截面的速度矢量图更多还原

【Abstract】 The Mathematical model for air motion in combustion chamber of internal combustion engine is established.The Arbitrary Lagrangian-Eulerian Method is updated.The three-dimensional numerical calculation for air motion in combustion chamber of internal combustion engine is carried out by the updated method.The calculated results and data measured by Laser Doppler Anemometer are compared,which shows fairly good agreement.The velocity profile in vertical section,cross section,and side section is obtained.更多还原